NUMERICAL FLOW-ANALYSIS OF PULSATILE FLOW IN A CHANNEL WITH SYMMETRICAL WAVY WALLS AT MODERATE REYNOLDS-NUMBERS

被引：24

作者：

NISHIMURA, T

YOSHINO, T

KAWAMURA, Y

机构：

[1] Hiroshima Univ, Higashi-Hiroshima, Jpn, Hiroshima Univ, Higashi-Hiroshima, Jpn

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 1987年 / 20卷 / 05期

关键词：

BIOLOGICAL MATERIALS - Blood - CHEMICAL OPERATIONS - Separation - MATHEMATICAL TECHNIQUES - Finite Element Method - OXYGEN;

D O I：

10.1252/jcej.20.479

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A numerical analysis of pulsatile flow in a wavy channel with periodically converging-diverging cross sections was carried out by the finite element method. The variations of streamline and wall shear stress with Womersley number A*, Reynolds number Re and oscillatory fraction of the flow rate P were studied. A recirculation vortex occurs within the furrow of the wall during the acceleration phase for inertia-dominated flow but during the deceleration phase for viscosity-dominated flow. An experimental flow visualization study additionally performed shows good agreement with the numerical analysis.

引用

页码：479 / 485

页数：7

共 6 条

[1]

BELLHOUSE BJ, 1972, T AM SOC ARTIF INT O, V19, P72

[2] NUMERICAL-SIMULATION OF OSCILLATING FLOW THROUGH IDEALIZED SCLEROTIC ARTERIES [J].